1.Study on NPM1 and IDH mutations in childhood acute myeloid leukemia.
Li ZHANG ; Hui-min ZENG ; Xiao-fei AI
Chinese Journal of Hematology 2013;34(5):449-452
Adolescent
;
Child
;
Child, Preschool
;
Female
;
Humans
;
Infant
;
Isocitrate Dehydrogenase
;
genetics
;
Leukemia, Myeloid, Acute
;
genetics
;
Male
;
Mutation
;
Nuclear Proteins
;
genetics
;
Prognosis
;
Treatment Outcome
3.The correlation between human leukocyte antigens-A, B, DRB1 high-resolution alleles and chronic renal failure caused by immunoglobulin-a nephropathy
Lixin YU ; Mingxing ZENG ; Guirong YE ; Min LUO ; Lulu XIAO
Chinese Journal of Organ Transplantation 2015;36(2):73-77
Objective To investigate the correlation between human leukocyte antigens-A,-B,-DRB1 (HLA-A,-B,-DRB1) high resolution alleles and chronic renal failure (CRF) caused by immunoglobulin-a nephropathy (IgAN).Method The polymerase chain reaction-sequence-based typing (PCR-SBT) method was used to investigate the genotypes of HLA-A,-B and-DRB1 high-resolution alleles in 191 cases of CRF caused by IgAN (experimental group) and 503 healthy blood donors (control group).The alleles frequencies between two groups were compared and the association between CRF caused by IgAN and the polyrnorphism of HLA was analyzed.Result (1) There were 25 alleles at A locus,48 alleles at B locus and 32 alleles at DRB1 locus in experimental group.(2) The genetic frequency of HLAA * 2901 [Pc =0.033,OR =10.738,95% CI (1.193,96.691)],HLA DRB1 * 1106 [Pc =0.0001,OR =0.969,95% CI (0.944,0.994)],HLA-DRB1 * 1202[Pc =0.002,OR =1.859,95% CI (1.259,2.745)],HLA-DRB1 * 1401 [Pc =0.021,OR =0.984,95% CI (0.967,0.998)],HLA-DRB1 * 1602[Pc=0.015,OR=1.915,95% CI (1.157,3.17)] in experimental group was higher than in control group (P<0.05).Conclusion There is susceptibility association of HLA-A * 2901,HLA-DRB1 * 1106,HLA-DRE * 1202,HLA-DRB1 * 1401,HLA-DRB1 * 1602 with CRF caused by IgAN.It is concluded that there is a close genetic and immunological correlation between HLA alleles and the pathogenesis of CRF caused by IgAN.
4.Study on morphological and immunophenotypic features of renal cell carcinoma with sarcomatoid differentiation.
Li XIAO ; Xiao-yu LU ; Ru-yong TANG ; Min DENG ; Xiong-zeng ZHU
Chinese Journal of Pathology 2007;36(4):259-260
Actins
;
metabolism
;
Aged
;
Aged, 80 and over
;
Carcinoma, Renal Cell
;
metabolism
;
pathology
;
Cell Differentiation
;
Female
;
Humans
;
Immunohistochemistry
;
Keratin-7
;
metabolism
;
Keratin-8
;
metabolism
;
Kidney Neoplasms
;
metabolism
;
pathology
;
Male
;
Middle Aged
;
Sarcoma
;
metabolism
;
pathology
;
Vimentin
;
metabolism
5.Rehabilitation Nursing of the Sacral Tumor Resection at the Peri-operative Period
Ying-qiong CHEN ; Xiao-fang ZENG ; Xiao-min HOU ; Jingjin CHEN ; Xianjuan PENG
Chinese Journal of Rehabilitation Theory and Practice 2006;12(10):910-911
ObjectiveTo evaluate the effect of rehabilitation nursing in the peri-operative period of the first-stage combined anterior-posterior approach surgery in the sacral tumor resection.Methods15 patients with sacral tumor received psychological intervention, gastrointestinal preparation, exercises of perineum sphincter contraction and relaxation training before the operation. Changes of patients' vital signs and nerve function were observed after the operation, and rehabilitation training and instruction were performed.ResultsAll cases were followed up for 2~37 months. Except one case died of tumor transfered to lung, all of other cases had a satisfactory curative effect in the near future, and their local symptom released and the functions of urination and defecation were kept well.ConclusionRehabilitation nursing in the peri-operative period plays an important role in surgical treatment of sacral tumor. It affects the rehabilitation and function restitution obviously and can reduce the occurrence of complication effectively.
7.Pharmacokinetics of single dose intravenous infusion of magnesium isoglycyrrhizinate in patients with chronic hepatic impairment
xiao-dong, YAO ; jin-fang, SHEN ; yi-min, MAO ; min-de, ZENG
Journal of Shanghai Jiaotong University(Medical Science) 2006;0(02):-
0.05). Conclusion The elimination half-life of magnesium isoglycyrrhizinate in patients with chronic hepatic impairment is 27 h,and the regiment of 100 mg once a day is recommended.
8.The effects of rapamycin on the proliferation and apoptosis of human retinal pigment epithelium cells in vitro
Min, HOU ; Hong-ling, LIU ; Zeng-wei, YIN ; Xiao-mei, ZHANG
Chinese Journal of Experimental Ophthalmology 2011;29(10):879-883
Background Rapamycin(RAPA)is a specific inhibitor of the mammalian target of rapamycin (mTOR).Researches showed that RAPA inhibits the proliferation of lens epithelium cells(LECs)and tumor cells and induces apoptosis of tumor cells.To investigate whether rapamycin has the inhibitory effect on retinal pigment epithelium(RPE)cells is very important for the prevention and management of proliferative vitreoretinopathy (PVR).Objective This study was to investigate the effects of RAPA on the proliferation and apoptosis of human RPE cells in vitro.Methods Human RPE cells(D407 strain)were cultured and passaged and then divided into regular culture group(blank control group),DMSO control group(0.1‰ DMSO +regular culture),and different concentrations RAPA-treatment groups(5,10,20,40,80,160,320 nmol/L).The proliferation(A490)of human RPE cells was detected using MTT,and the inhibitory rates of RAPA on the proliferation of RPE cells were calculated and compared among different groups at 12,24 and 48 hours.The apoptosis rates of the cells were analyzed among various groups by Hoechst staining after 12,24,48 hours.Results The inhibitory rates of RAPA on RPE cells were significantly different among various groups(F=484.451,P<0.01)and evidently elevated in 20-320 nmol/L RAPA groups compared with DMSO control group(P < 0.01).The inhibition of RAPA on the cells was considerably enhanced as the lapse of time(F=232.262,P<0.01)with more dominant effects in 24 and 48 hours compared to 12 hours after addition of RAPA(P<0.05-0.01).Compared with blank control group and DMSO control group,the apoptotic rates of the cells were evidently increased in 12,24,48 hours in 10 nmol/L RAPA group(all P<0.05),and higher cellular apoptotic rates were found in 20-320 nmol/L RAPA groups(all P<0.01).The alteration of cellular apoptotic rate showed a gradually incremental trend as the acting time of RAPA(F =625.584,P<0.01).Karyorrhexis and mass-like density staining and chromatin substance were seen in RPE cells under the fluorescence microscope in ≥ 10 nmoL/L RAPA groups.Conclusions RAPA suppresses the proliferation and induces the apoptosis of human RPE cells in concentration-and time-dependent manner in vitro.
9.Investigation and analysis of heavy metal pollution related to soil-Panax notoginseng system.
Lu CHEN ; Yan-Hua MI ; Xin LIN ; Da-Hui LIU ; Min ZENG ; Xiao-Yan CHEN
China Journal of Chinese Materia Medica 2014;39(14):2608-2613
OBJECTIVEIn this study, five heavy metals contamination of soil and different parts of Panax notoginseng in the plantation area was investigated. Analysis of heavy metals correlation between the planting soil and P. notoginseng; and the absorption and accumulation characteristics and translocation of soil heavy metals by P. notoginseng plants was revealed.
METHODThrough field investigation and laboratory analytical methods, analysis of China's 30 different soil P. notoginseng origin and content of heavy metals in five different parts of the P. notoginseng plant content of heavy metals.
RESULTThe results revealed that the soil heavy metals should not be neglected in the plantation area Referring to the national soil quality standards (GB15608-1995), the excessive degree of soil heavy metals pollution showed Hg > As > Cd > Cr in the plantation area, and Pb content of soil was in the scope of the standard. Refer to 'Green Industry Standards for Import and Export of Medical Plants and Preparations', the excessive degree of heavy metals content of P. notoginseng plants showed As > Pb > Cr > Cd, and Hg content of plants was in the scope of the standard. Concentrations of five heavy metals of underground parts of P. notoginseng plants are higher than aboveground, and heavy metals elements are more concentrated in the root, followed by the rhizome of P. notoginseng plants. Heavy metal accumulation characteristics of the different parts of the P. notoginseng of the overall performance is the root > the rhizome > the root tuber > leaves > stems. From the point of view BCF value analysis of various parts of the P. notoginseng plants to absorb heavy metals in soil, BCF values of all samples were less than 1, description P. notoginseng not belong Hyperaccumulator. From the view of transportation and related analysis of the soil-P. notoginseng systems, the rhizome of P. notoginseng and the content of As and Cr in soil was significantly correlated, the root of P. notoginseng and the content of Cd in soil was significantly correlated, and no significant correlation between the other indicators. Through the analysis of transportation transfer coefficient showed: Pb, As and Cr are not easy to transport aboveground part from the underground, but Cd and Hg are relatively easy to transport stems from rhizome, the migration of five heavy metals in the aerial part is relatively strong, and heavy metal of stems is easily transported to the leaves.
CONCLUSIONP. notoginseng does not belong to the enrichment of heavy metals in crops, especially for Hg in soil with strong patience. In survey area, the content of heavy metals of P. notoginseng's planting soil is relatively high, and the heavy metals As, Pb, Cr, Cd of P. notoginseng also exist heavy metals exceeded problems. Due to the presence of heavy metals in crops internal absorption and translocation of special laws, accumulation of heavy metals varied significantly in different parts of P. notoginseng. The overall, the performance for the heavy metal content of the underground parts is more than aboveground, it explain heavy metals of P. notoginseng plants is still the main source of the soiL Therefore, the key to control of planting area soil environmental quality and reduce exogenous harmful substances secondary pollution of soil in the cultivation process are to study and solve the heavy metals pollution problem of P. notoginseng.
Adsorption ; China ; Laboratories ; Metals, Heavy ; analysis ; Panax notoginseng ; chemistry ; Soil ; chemistry ; Soil Pollutants ; analysis
10.Advances on pathogenesis research of acute myeloid leukemia with t(8;21)-- review.
Hui-Min ZENG ; Ye GUO ; Xiao-Fan ZHU
Journal of Experimental Hematology 2010;18(6):1632-1637
Acquired chromosomal translocations can be identified in nearly 50% of human acute myeloid leukemias. The common chromosomal translocation in this disease is t(8;21) (q22;q22). It involves the aml1 (runx1) gene on chromosome 21 and the eto (mtg8, runx1t1) gene on chromosome 8 generating the aml1/eto fusion gene. An initial model for its pathogenesis emphasized the conversion of a hematopoietic transcriptional activator AML1 into a leukemogenic repressor which blocked myeloid differentiation at the level of target gene regulation. Aml1/eto fusion genes inhibit key hematopoietic transcription factor that function as tumor suppressors at several nodal point during hematopoietic differentiation. A new model is presented in which aml1/eto coordinates expansion of the stem cell compartment with diminished lineage commitment and with genome instability. In this review, the molecular role of aml1/eto fusion gene and his transcribed isoforms in regulating stem renewal, blocking hematopoietic differentiation and interacting with various lineage-specific transcription factors are summarized.
Chromosomes, Human, Pair 21
;
Chromosomes, Human, Pair 8
;
Core Binding Factor Alpha 2 Subunit
;
genetics
;
Humans
;
Leukemia, Myeloid, Acute
;
genetics
;
pathology
;
Oncogene Proteins, Fusion
;
genetics
;
RUNX1 Translocation Partner 1 Protein